Flow, photo by John Clement Howe.

John took this shot in Au Train, Michigan where the Au Train River flows into Lake Superior. Check it out bigger in his Lakeshores slideshow.

Speaking of flow, rivers and water, if you’ve never seen Irena Salina’s documentary on the World Water Crisis, I heartily encourage you to check out Flow. The New York Times review has this to say about Flow:

A documentary and a three-alarm warning, “Flow” dives into our planet’s most essential resource — and third-largest industry — to find pollution, scarcity, human suffering and corporate profit. And that’s just in the United States.

Yet Irena Salina’s astonishingly wide-ranging film is less depressing than galvanizing, an informed and heartfelt examination of the tug of war between public health and private interests. From the dubious quality of our tap water (possibly laced with rocket fuel) to the terrifyingly unpoliced contents of bottled brands (one company pumped from the vicinity of a Superfund site), the movie ruthlessly dismantles our assumptions about water safety and government oversight…